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FAN5350UCX Datasheet(PDF) 5 Page - Fairchild Semiconductor |
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FAN5350UCX Datasheet(HTML) 5 Page - Fairchild Semiconductor |
5 / 15 page © 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN5350 Rev. 1.0.1 5 Electrical Characteristics Minimum and maximum values are at VIN = 2.7V to 5.5V, TA = -40°C to +85°C, CIN = COUT = 4.7µF, L = 1µH, unless otherwise noted. Typical values are at TA = 25°C, VIN =3.6V. Symbol Parameter Conditions Min. Typ. Max. Units Power Supplies Device is not switching, EN=VIN 16 µA IQ Quiescent Current Device is switching, EN=VIN 18 25 µA I(SD) Shutdown Supply Current VIN = 3.6V, EN = GND 0.05 1.00 µA Rising Edge 1.8 2.1 VUVLO Under-Voltage Lockout Threshold Falling Edge 1.75 1.95 V V(ENH) Enable HIGH-Level Input Voltage 1.2 V V(ENL) Enable LOW-Level Input Voltage 0.4 V I(EN) Enable Input Leakage Current EN = VIN or GND 0.01 1.00 µA Oscillator f0SC Oscillator Frequency 2.5 3.0 3.5 MHz Regulation ILOAD = 0 to 600mA 1.775 1.820 1.865 V VO Output Voltage Accuracy CCM 1.784 1.820 1.856 V tSS Soft-Start EN = 0 -> 1 300 µs Output Driver PMOS On Resistance VIN = VGS = 3.6V 180 m Ω RDS(on) NMOS On Resistance VIN = VGS = 3.6V 170 m Ω ILIM PMOS Peak Current Limit Open-Loop (3) 650 800 900 mA TTSD Thermal Shutdown CCM Only 150 °C THYS Thermal Shutdown Hysteresis 20 °C Note: 3. The Electrical Characteristics table reflects open-loop data. Refer to Operation Description and Typical Characteristic for closed-loop data. |
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